Answer:
Waves interact with matter in several ways. The interactions occur when waves pass from one medium to another. Besides bouncing back like an echo, waves may bend or spread out when they strike a new medium. These three ways that waves may interact with matter are called reflection, refraction, and diffraction.
Explanation:
Its found in the tectum of the dorsal aspect of the midbrain
Dystocia refers when a birth is difficult.
Pretty sure its secondary waves
Skin. hair. nails. hope these helped!
